#loginForm .login-submit-wrap {
    display: inline-block;
    vertical-align: top;
}

#loginForm .login-submit-button {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin: 0;
}

#loginForm .login-submit-wrap.is-busy .login-submit-button {
    cursor: wait;
}

#loginForm .login-submit-button__spinner {
    display: none;
    width: 12px;
    height: 12px;
    margin: 0 0.5em 0 0;
    border: 2px solid rgba(255, 255, 255, 0.35);
    border-top-color: #ffffff;
    border-radius: 50%;
    pointer-events: none;
    animation: login-submit-spin 0.75s linear infinite;
}

#loginForm .login-submit-wrap.is-busy .login-submit-button__spinner {
    display: inline-block;
}

@keyframes login-submit-spin {
    to { transform: rotate(360deg); }
}